Steam-boiler.



G. F. SPENCER.

STEAM BOILER.

APPLICATION FILED APR-29, 1915.

5 SHEETS-SHEET l- Eml- Ball- Elma/who's Georyelf'fiencm;

THE COLUMBIA PLANOGRAPH CO., WASHINGTON, D. c.

G. F. SPENCER.

STEAM BOILER APPLICATION FILED APR. 29, IBIS.

Patented Mar. 28, 1916.

5 SHEETSSHEEI 2- Iii-JE- THE COLUMBIA PLAIjOGRAPn 00., wAsHlNqfoN, n. c. l

G. F. SPENCER. .STEAM BOILER. APPLICATION FILED APR. 29, I915.

Patented Mar; 28, 1916. I

5 SHEETSSHEEI 3- Qttomw G. F. SPENCER.

STEAM BOILER.

APPLICATION FILED APR.29. 1915.

Patented Mar. 28, 1916.

5 SHEETS-SHEEI 4.

THE COLUMBIA PLANOGRAPH c0., WASHINGTON, D. c.

G. F. SPENCER.

STEAM BOILER.

APPLICATION FILED APR29, 19 15.

1., 177,366. Patented Mar. 28, 1916.

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rm: COLUMBIA PLANOGRAPH \-u., WASHINGTON, n. c

"UNI ED STATES P TE T orni on GEORGE FANTO'N-SPENCER OF THOIVIPSON, PENNSYLVANIA.

" STEAM-BOILER.

"Tosall whom it'may concern:

Be it known that I, GEORGE F- SPENCER, a citizen of the UniteduState's, residing at Thompson, in the county of Susquehanna :and State of Pennsylvania, have invented new and useful Improvements in Steam- Boilers, of which the following is a specificationx 1 The present ,invention is directed to improvements in steam boilers,-and particularly to: one designed -.for domestic heating purposes.

'.T he invention has for its object to provide a boiler of this type with a fine at each end, andito provide each flue with dampers operable to change the directionoftravel of the products of combustion, whereby the boiler-will generate effectively under different draft conditions.

Another object of the invention is to provide a hot waterijacket for each flue to aid in utilizing the products of combustion during the travel thereof through the fines, and previous to entry thereof into the boiler tubes whereby ,the'heat of the'productsduring thepassage thereof throughthe flues is maintained instead of decreased, asis usual in boilers of all types.

. A-still further object of the invention is to provide one of the water jackets with slots to permit the insertion of a brush for :eleaning the fines and ,fire tubes .of the :A .Estill ifurther object of the invention is ito:pro vide aisteamboiler s0 .censtrgucted that ;:steam maybe zamount of. fuel.

generated. with a minimum In the'drawings: Figure 1 is asideele'va- :tioniof'the boilergFig. 2 is a rear elevation,

Eig.-3;i-s alfront View; Fig.4 isiaside elevation. ofl-the boiler, the water jackets removed; Rig. .5 is a front .elevation, t'he water jacketiremovemiFig. 6. is'a rear elevation, the =water jacket being removed; Fig. 7 1S detail view of the front water jacket; .Fig. :8- is "a sectional viewon theline 8S 'ofiEig-fi Fig. 9 is a similar view taken on the line 99 of Fig. 8; Fig. 10 is "a detail view of the water jacket for the rear flue;

-Fig.:l-1 is 'a top plan view of the rear water jacket, removed, and showing in dotted lines "the associated position of the rear flue dampers; and Fig. :12is .a longitudinal, vertical Section of my improved steam boiler.

Referring to the draw1ng,;1des1gnatesthe pinupen ithetendsief which .are supported Specification of Ietters Patent.

hollow heads 2 which have: suitably securedto' their sides plates 3, eachhead having parallel and inward angular extensions consisting of the horizontal legs'2 and theverticalte'rminallegs 2. The plates 3-forn1in Patented llfark28, 1 91 6 Applicationfiled'April-iZB,1915. Seria1'No.24,764. i

conjunction'with the'heads 2 the fire box .4

in which'are suitably supported inclined grate bars 5','indicated by dotted lines in Fig. 2, fuel being introduce'ditothe fire box through hopper 6.

The heads 2 -are'-'con-,

nected by water tubes 7 and'since the same j are lccated in the fireboxethe water in the heads will be subjected to intense heat and will thus circulate through the heads and tubes. 1

' 'The boiler 8 is supported above'the fire box f in any'suitable manner' -and has mounted therein in the usual mannerfire tubes 9.

At'the front and rear 'of the bOiler S'are fiues' 11 and 12,-.respectivelyfthe 'fii'e'tu'bes-9 affording communication betweensaid fiues. Secured flush against the fluell, and .con-

stituting a wall thereof with head 2, is a water .jacket 13, which is provided with horizontal slots 14, said slots havingcentral'recesses -15,which form openings to permit theinsertion of the head of a brush, the handle of whichbeing freely movable'the length of the slots whereby the-tubes 9 and fines 1 1 and 12 maybe conveniently cleaned or scraped. The slots Harenorinally closed with doors iewhich are-hingedly connected toEthe jacket 13.

The inner wallcf the jacket 13 is pro,-

:vided =nea'r 'its-i1pper end with a nipple ;1 7 which isv adapted itoiengageinan opehingl-O' wall-for,thexfiue12, asshown in dotted lines iH1FigSQ-1 ande fsaitl jacket having a neck ,21 extending across theflue and-having its upper end connected to an opening 10in the rear wall of the boiler. The jacket-2Ov is :provided with forwardly projecting side cla mps orsarins 22 which: extend upon :oppoiSltI-Z sides of the flue 12.

The jacket "20}is presided-with.- an elbow; w iehh srit door o ening 36 may be utilizedina-ddition manner the beveled lower end of thecsmoke,

pipe 25. By beveling the flue andpipe it is obvious that the pipe may extend vertically, or if desired the same may be attached in a horizontal position, as shown in dotted lines in Fig. 1.. Thus it will be seen that the smoke pipe .25 may be arranged for attach ment to a horizontal or vertical. outlet flue."

Mounted in the flue12 is a pair. of swinging dampers 26 and 27, while the flue 11 a single damper 28 ismounted. lVhen it is desired to have a direct'draft through the flue 12 the dampers semi 27 are moved to their open positions. lVhen dampers 27 and 28 are open and damper 26 is closed the products of combustion will pass forwardly among the watertubes 7 passing up fine 11 and then rearwardlythrough all of the fire tubes 9 and into flue 12 and thence to chimney. To obtain still more fire travel the damper 26 is opened and dampers 27 and 28 are closed, thus causing the products of combustion to travel rearwardly among water :lJLIbES' T into the lowerportion of fine 12 and from thence forwardly in the fire tubes 9 located below the level of damper 27 into flue 11; said gases return rearwardly through fire tubes 9, located above level of damper 27, to the chimney. Thus itwill heated state 'so that when'the'products of combustion enter the flues'it will" retain its heat since the fluesare heated previous to the entryof the products of combustion.

The boiler 8 is provided with a steam dome 29, and leading therefrom a pipe 30, 'which' is; connected to the general steam main of heating plant (not shown) which lead to the radiators. g

fOne end'of the ash'pit lis provided with draft regulating damper 31, which maybe operated in any suitable manner. while the other end thereof'is provided with a cleanout door 32 having a draft damper 38 carried thereby. By providing each end of the ash pit with draft dampers the draft mav be regulated at both ends of'the-ash pit. The jacket 13 is provided with a cut away porticn 31 which is arrangedadjacent the cutaway portion'35 of the head adjacent thereto "so as to PIOX'lClG a door opening, which'is closed by a hinged door 37.; The

to the hoppers 6 for'feeding fuel to thefire box or the same permits the entrance of a poker when it is desired to rake the fuel or remove clinkers.

Obviously, the jacket 13 may be done7o away with and simply a pair of heavy doors (not shown) substituted, the doors being; adapted to resist heat sufficient not to warp out of shape. This may be desirable in cheaper constructions although not as pramtical.

What .is claimed-isi I l 1. A structure ofthe character described? comprising a supporting basesectionhaving an ash pit provided with openings at 'itsop- 8t 'posite ends, dampers for the openingstol the ash pit, a superposed gboiler section on the base sectio-nflhaving a fire box and consisting of a head at eachiend, each head having spaced parallel horizontal portions extend- 8-5 mg inwardly and vertical terminal extensicns thereon, watertubes arranged at the' sides of the fire box and connecting the heads, a boiler supported on the head extensions and-"provided :with' a plurality of :96

longitudinal fire. tubes, said boiler also being formed in its vopposite end -walls;with openings communicating with the boiler interior, water jackets secured to the-heads and boiler and defining therewith fi'uesa 1112 9 the opposite ends of the boiler, each water jacket having a tube extension fitting about. the boiler openings in coincidence therewith for establishing communication between the i.

jackets and boiler, and means establishing communicationbetween one of said water: jackets and its supporting head.

2. A structure offthe character described comprising a supportingbase section having 1 an ash pit provided with openings at its opposite ends, dampers for'the openings to the ash pit, a superposed boiler section on the base section having .a fire box and consisting of a head at: each end, each .head 5i" having spaced parallel horizontal portions 11 extending inwardly and vertical terminal" extensions thereon, water tubes arranged at the sides of the fire box and connecting the heads,a boiler sunDo-rted'on the head'ex tensions and provided with a plurality.of;1

longitudinal fire tubes,-said boiler als"o=be-.- ing formedin its opposite end walls with openings communicating with the boiler interior, water jackets secured to the heads and boiler and defining-therewith fines at3 witlrfor establishing communication between the jackets and holler, means estab- 12 5 lishing communication between one: of .said water jackets and ts SIIDPOIUHQ: head, a;

damper in one of the flues, and speed dampers in the other flue.

3. Astructure of the cha'racter'idescribed jl so comprising a fire box, a head arranged at each end thereof and provided with inwardly extending arms, a boiler-supported bv the arms of the heads over the fire box, a water jacket supported on the arms of each head and forming a fine with the adjacent end of the boiler, and means establishing communication between the water jackets and the boiler.

4. A structure of the character described comprising a fire box, a head arranged at each end thereof and provided with inwardly extending horizontal arms each of the latter having a vertical hollow post, a

boiler suppCrted on the posts and provided with fire tubes, a water jacket supported on the arms of each head and abutting the adj acent end wall of the boiler to define a flue therewith, and a damper in each flue journaled in and between the arms of the respective head.

5. A structure of the character described including a fire box, a boiler supported over the same and provided with fire tubes, a water jacket secured to one end of the boiler over the tubes and defining with the boiler, a flue, said jacket being provided with a plurality of slots through which access may be obtained to the tubes and fine, and closure means for the jacket slots.

'6. A structure of the character described comprising a fire box, a head arranged at each end thereof and provided with inwardly extending, communicative. connecticns between the water jackets and the boiler, a connection between one of the heads and the supported water jacket, and water Copies of this patent may be obtained for five cents each, by addressing the Washington, D. 0.

head arranged at one end of the fire box.

and provided with a horizontal extension terminating in a vertical leg supporting the boiler, a water jacket seating on the head and having parallel arms resting on the head horizontal extensions to define a fine with the boiler, and a neck extension projecting upwardly from the waterjacket and communicating with the boiler.

8. A structure of the character including a fire box, a superposed boiler, a head arranged at one end of the fire box and provided with a horizontal extension terminating in a vertical leg supporting the boiler, a water jacket seating on the head and having parallel arms resting on the head horizontal extensions to define a flue with the boiler, a communicative connection between the water jacket and thesupporting head, and,a neck extension'projecting upwardly from the water jacket and communi- V eating with the boiler.

described In testimony whereof I have hereunto set my hand inv presence of two subscribing witnesses.

Witnesses:

W. F. SPENCER, L. M. SPENCER.

Commissioner of Patents. 7 

